MXPA98005351A - High voltage electrical connector with cavity of access and gravers to use them with my - Google Patents

Abstract

The present invention relates to a high-voltage electrical connector comprising: a body portion of electrically insulating material, an external shield conducting the body portion that at least partially surrounds the body portion, a projection of electrically insulating material having a first end, connected to the body portion, and a second end extending from the body portion, an access cavity extending through the projection and having an opening at the second end of the projection, the access cavity communicates the exterior of the electrical connector with a conductive portion of the interior of the electrical connector, an external projection conductor shield secured to the projection, the external shielding conductor of the projection is permanently electrically coupled to the conductive outer shield of the portion of body and extends from the external shield conductor of the portion of cu At least at the second end of the projection, and an insert having a body made or manufactured from an insulating material, the body comprises: an insertion portion received by the access cavity, and an exposure portion, the Exposure portion includes: an outer surface, a conductive coating fixedly secured to the outer portion and electrically coupled to the external conductive shield

Description

ELECTRICAL CONNECTOR OF HIGH VOLTAGE WITH CAVITY OF ACCESS AND GRAVES FOR USING THEM WITH THE SAME FIELD OF THE INVENTION The present invention relates to high-voltage electrical connectors for high-voltage cable conductors and, more particularly, to insert pins and inserts of injection pin for insertion in an access cavity: | high voltage. BACKGROUND OF THE INVENTION High voltage electrical connectors interconnect source of energy, such as transformers and circuit breakers, with distribution systems and the like, by means of high-voltage connectors. These high-voltage electrical I connectors normally interconnect cables that have an electrical potential of 15 to 35 kV and are configured in such a way that at least one of the interconnected cables can be easily disconnected from the high voltage electrical connector to create an "interruption". or cut "in the circuit. Because high voltage electrical connectors can experience corona discharges and other electrical shocks as they must be handled by service personnel, they include many safety features to minimize the risk of injury and the likelihood of structural damage to the connector. same and other nearby equipment. For example, a conventional high-voltage electrical connector or "elbow" connector includes a cable connector unit within the body of the elbow connector for electrically interconnecting or coupling a cable within the 0001 .0454 high voltage electrical connector with an electrical contact structure,; coupling of an associated coupling sleeve. The coupling sleeve, in turn, is connected or electrically coupled to a transformer or other electrical device. The cable connector unit is surrounded by an insulating dielectric material, with the exception of the openings that provide access to the internal connector unit. The insulating dielectric material is surrounded by a conductive shield, usually a molded sleeve-like element. The conductive shield is electrically grounded, so that any voltage that may form on the surface of the electrically insulating material or any electrical discharge near the connector is immediately dissipated to ground. - However, experience has shown that it is desirable to have access to the interior of the high voltage electrical connector. For example, it is often desirable to vent gases from inside the connector, conduct tests on the unit. indoor cable connector or make measurements from inside the connector. Thus, conventional high voltage electrical connectors may include an access hole extending from the outside of the connector and through the insulating material, such that the internal cable connector unit is exposed. * One use of said access hole is to inject an insulating liquid towards the cable extending from the connector to improve the dielectric strength of the insulating material inside the cable. This insulating liquid restores the damaged insulation, renewing the connector. The cables connected to the connector usually include a 00014. 0454 have been removed, an injection port can be inserted into the access hole. Corona discharges can occur in a problematic way during this process, because the insulating protection is exposed without a landed lining and the dielectric seal has broken. The injection port allows a gas or a liquid to be injected into the connector and / or the cable or to be disconnected from it through the hole formed in the injection ports. The conventional injection ports are formed from an insulating material and, are sized to fit within the access hole "and provide a dielectric seal, similar to the injection pin. These conventional injection ports do not include any landed shielding, Before or after inserting a conventional injection port into the access hole, a hose or a similar element, :: it is connected to a hose connector in the port of injection, so that maintenance, fluid injection or the desired tests can be initiated. Because the injection port is not covered with a grounded shield, - the surface of the insulating projection and the hose connector can have a dangerous electrical potential. This potential can cause the formation of arcs. Furthermore, due to the capacitive coupling, the opportunity for a high surface voltage increases because the liquid, gas or contaminants within the cable that will be removed from the connector and / or electrical cable can be good conductors. In addition, because the gases and / or the liquids that exit can be conductors, the formation of electric arcs can happen directly from the orifice in the injection port, coming from the high voltage of 00014. 0454 SUMMARY OF THE INVENTION An object, primary of the embodiments of the present invention, is to provide an insert for insertion into an electrical connector access cavity, which minimizes the occurrence of corona discharges and other electrical discharges. . 00014. 0454 it is permanently electrically coupled to the conductive outer shield of the body portion. The external conductive shielding of the projection extends from the conductive outer shield of the body portion at least to the second end of the projection. In accordance with the present invention, the foregoing objects and advantages as well as other objects and advantages are obtained by means of a high-voltage electrical connector including a body portion made or manufactured of an electrically insulating material, an external conductive shielding surrounding - to the body portion, an access cavity communicating to the exterior of the connector with the interior of the conductor coupling unit and an insert having a body made of an insulating material. The body has an insertion portion received by the access cavity and an exposure portion. The exposure portion includes an exterior surface, a means for removing the insert from the cavity, a conductive coating secured in a fixed manner to the exterior surface of the exposure portion and a means for electrically coupling the conductive coating with the conductive external shield. In accordance with the present invention, the above as well as other objects and advantages are obtained by means of a dielectric injection plug comprising a body made or manufactured from an insulating material.

The body has an insertion portion and an exposure portion. The exposure portion has a connection portion. The insertion portion includes an arrow. The exposure portion includes an exterior surface, a grip portion, a conductive shield covering the exterior surface-of the exposure portion, and an electrical coupling member for electrically engaging the 00014. 0454 the present invention. 00014. 0454 00014. 0454 high voltage internal components and the conductive external shield 52 The insulating body portion 59 also includes openings for receiving the high voltage cable 37 and an electrical connection device, so that they can be electrically connected to the coupling unit 34 conductor within the interior of the electrical connector 50. In this way, the outer conductive shield 52 of the body portion partially surrounds the body portion. It is often desirable to gain access to the interior of the electrical connector 50. To allow this access, the connector 50 in accordance with the present invention includes an access cavity 58 located in a projection 62 of insulating material extending from the portion of body 59. The access cavity 58 is preferably a straight hole extending from the outside of the electrical connector 50 through the insulating projection 62 and towards the insulating body 59, so that at least a portion of the high voltage elements within the connector, preferably at least the interior of the conductive coupling unit 34. Although the access cavity 58 is preferably a straight cylindrical hole, other shapes are contemplated. For example, the access cavity 58 may be inclined with respect to the outer conductive shield 52 to be conical, square, triangular, oval. or numerous other configurations, provided that the interior of the high voltage electrical connector 50 is exposed. The insulating projection 62 is covered with a pre-molded conductive sleeve referred to as the projection conductor outer shield 55. In the embodiment illustrated in Figures 1, 3 and 6, the projection 62 and the access cavity 58 are preferably located near the 00014. 0454 female conductor 57, in such a way that the access cavity includes an opening 51 inside the female connector of the conductive actuating unit 34. However, the access cavity 58 and the insulating projection 62 may be located in any number of different locations around the electrical connect 50 and still be within the confines of the present invention. The projection conductor outer shield 55 is located over the area of the electrical connector 50, where the access cavity 58 is intended to reside. The external conductive shield 55 can be formed integrally with the conductive external shield 52 by a process it is molded in such a way that they are integral and in one piece or that they can each be formed separately and then permanently joined to each other by welding, adhesion or other means by which the two are electrically coupled together. In any case, the external conductor shield 55 is secured in a fixed or permanent manner to the outer conductor shield 52 of the body portion, such that it is not easily removable or detachable. is e: the appropriate location, the conductive outer shield of the body portion 52 and the outer shield conductor 55 are filled with an insulating material to form the body portion 59 and the insulating projection 62. The insulating projection 62 can be formed in a separate step or the projection and the body portion 59 may be formed in such a way that they are a piece or are integrated together, in the same way, the projection 62 and the body portion 59 may be formed from different insulating materials of the same material. 00014. 0454 Preferably, the projection 62 and the body portion 59 are formed from the same material. After the insulating projection 62 has been formed, the access cavity 58 is formed in the center of the insulating projection for example, by removing an unscrewed mandrel from the insulating material. However, the access cavity 58 can be formed by other methods. For example, the access cavity 62 can be formed by drilling through the insulating material into the electrical connector 50. In this way, once the access cavity 62 is formed, it is evident that the external conductive shield of the projection 55 at least partially surrounds the access cavity 58. The access cavity 62 communicates the exterior of the electrical connector 50 with a conductive portion of the interior of the electric conctor, preferably, with the interior of the conductive coupling unit 34 located therein. of the interior of the insulating body 59. The insulating projection 62 includes two opposite ends 61 and 63. The first end 61 of the insulating projection 62 is generally the area of the projection connected to the body portion 59, even though, as shown in FIG. previously described, the insulating projection 62 and the body portion 59 may per part or may be formed separately. The second end 63 of the insulating projection 62 is located opposite the first end 61 and extends in -release of the body portion 59. As illustrated in Figure 1, the opening 67 of the access cavity in the insulating projection 62 is located at the second end 63 of the projection. The external conductive shielding 52 and the external projection conductor shield J55 are normally electrically grounded, so that 00014. 0454 will dissipate any surface voltage on the outer surface 65 of the insulating body 59 and the insulating projection 62. Although the insulating body 59 and the insulating projection 62 are formed from dielectric materials and are intended to be external surface 65 of the projection 62 and of the body 59, such that any voltage that may develop thereon can be ground to ground. To achieve this, the 00014. 0454 external shielding projection conductor 55 extends from the conductive outer shield of the body portion 52 at least up to the second end 63 of the insulating projection 62. In the embodiment illustrated in Figures 1, 3 and 6, the shielding external projection conductor 55 preferably extends above the second end 63 of the insulating projection 62. Thus, because the external projection conductor shield 55 is fixedly secured to the external conductive shield of the body portion 52, the projection Insulator 62 is not substantially exposed, so that any electrical potential on the outer surface 65 of the insulating bodies is not a problem, especially when access to the access cavity is attempted 58. Water and other contaminants may enter the interior of the cable 7 through the open ends of the cable during the cable installation. Contaminants can also enter the cable through connection devices or joints sealed in poor form II, and by migration through the insulation of the cable. Once the contaminants enter the cable 37, they can migrate through the cable and enter the interior of the high voltage connector 50. These contaminants cause damage to the insulation of the high voltage cable. These contaminants also react with the insulation of the cable and with the electric fields to form gaps in three ways in the insulation of the cable. These gaps can compromise the dielectric integrity of the cable insulation. In this way, the present invention provides access to the interior of the electrical connector 50 and to the cables connected through the access cavity 58 in such a way that the contaminants described above can be removed and replaced with a 00014. 0454 insulating liquid to restore the insulating barrier and to renew the dielectric areas inside the high voltage electrical connector and the high voltage cables. As further described below, contaminants are described within the electrical connector 50 and the wires can be removed by the access cavity 58 formed in the projection 62. However, because the cavity of access 58 is necessarily a small interruption in the grounded outer shield of the electrical connector 50 and in the dielectric seal of the body position 59, it is also necessary that the access cavity 58 be dielectrically sealed and that the landed outer shield be finished or complete when it is not necessary to have access to the internal parts of the electrical connector for testing or maintenance. To seal dielectrically to access cavity 58 and to complete the grounded outer shield surrounding the insulating body 59 and insulating projection 62, an insert or insert pin 20 illustrated in Figure 2 may be used when it is not necessary to have access through of the access cavity. Figure 2 illustrates an embodiment of an insert or insert pin 20 in accordance with an aspect of the present invention, which will be described with reference to the electrical connector 50 illustrated in Figure 3. The body of the insert 20 shown in Figure 2, Like the insulating body 59 and the insulating projection 62, they are preferably formed from an insulating material. The body of the insert 20 includes an insertion portion 23 and an exposure portion 21. The exposure portion 21 includes a head 24 and the insertion portion 23 includes an arrow 22 located opposite the head 24. The arrow 22 is dim'ensionada to be received in form 00014. 0454 coupled by the access cavity 58 of the electrical connector 50. In this way, the access cavity 58 of the electrical connector 50 can be dielectrically sealed by the arrow 22 of the insertion portion by inserting the arrow into the access cavity, such that the outer surface of the arrow engages with the arrow. paired with the surface of the access cavity in a form of interference fit. The tight or forced adjustment arrangement has two functions.goo First, the access cavity 58 is sealed to prevent materials from entering the interior of the electrical connector 50. Secondly, the continuity of the dielectric insulating projection 62 is restored. The arrow 22 and the head 24 they extend along the longitudinal axis of the insert 20. The exposure portion 21 of the insert also includes a hole 26 formed in the head 24 of the insert body which functions as a handle through which the insert can be removed from the insert cavity. port 58. Although preferred to "hole 26, other configurations are contemplated for" removing or removing the insert arrow 22 from cavity 58. For example, a hook, an eye, a screw, ropes, a handle are contemplated. , a clip, fingernails, a finger, a handle, a handle, a handle, a knob, a rod, an arrow, a butterfly, a strap or other means by means of which the insert 20 can be removed from the access cavity 58. The hole 2 6 is preferred, because it is easily formed and is adapted for use with a "live rod" or lever known in the art. The head 24 and the hole 26 formed therein can also be used to insert the arrow, 22 into the access cavity 58. As illustrated in Figure 2, the axis of the hole preferably 00014. 0454 is perpendicular to the longitudinal axis of the insert 20. In the embodiment of the insert pin 20 illustrated in Figure 2, the exposure portion includes a layer of conductive material or a conductive coating 36 bonded or attached to the entire exterior surface of the insert. the exposure portion 21. 3 i.e., the conductive coating 36 is fixedly adhered to the exterior surface of the exposure portion 21, such that it is intended to remain indefinitely on the exterior surface and is not easily removable. The conductive coating 36 can be sprayed onto the exterior surface or deposited by any of several processes, such as painting or metallization well known in the art. The exposure portion 21 of the insert pin 20 includes all portions of the insert body that are exposed when the insertion portion 23 is received in the access port 58. It further includes a portion of a coupling member 28 to ensure a electrical connection between the conductive coating 36 and the external shield 55 of the projection 62. Although the conductive coating 36 of the preferred embodiment of the present invention illustrated in Figure 2 is fixedly attached to the entire surface area of the portion of exposure 21 may only be on a paripé of the exposure portion 21. For example, it may be necessary to leave a small portion of the exposure portion 21 free of any conductive coating for testing purposes. In the embodiment of the present invention illustrated in Figure 2, the insert 20 includes the coupling member 28 for electrically coupling the conductive coating 36 with the external projection conductor shield 55, which is electrically coupled to the external shield 00014. 0454 connector body conductor 52. Coupling member 28 preferably includes a radially extending cylindrical surface 27 which is received by a recess 64 incorporated in the insulating projection 62. Coupling member 28 is received by recess 64, such that the conductive coating 36 on the cylindrical surface 27 extending radially and the coating on the coupling member 28 are in electrical contact with the external shielding projection shield 55 surrounding the access cavity 58. In this way, when the insert 20 is inserted into the access cavity 58, so that the coupling member 28 is received by the recess 64, the conductive coating 36 on the outer portion 21 is electrically coupled to the shields 55 and 52, such that the conductive coating 36 is at the ground potential when the shields 52, 55 are at ground potential. When the conductive coating 36 on the outer portion 21 of the insert 20 engages the shields 55, 52, which are wound to the ground potential, any surface voltage which may develop on the outer surface of the insulator body of the insert, due to the Capacitive coupling and any corona discharges forming arcs with the coating 36 dissipate to ground. Compared to conventional insert pins, the insert 20 does not depend on a separate conductive cap attached to an insulating rod, because the conductive coating 36 is fixedly adhered to the outer surface of the insert pin 20. This is advantageous, because there is no risk that the conductive coating 36 can dislodge or separate it from the insert 20 and the continuity of the electrical connection between the coating 36 and the insulating material of the insert 20 is uniform and 00014. 0454 mechanical cords, a screw, a bolt, a snap, wire, a hook, a hook, a buckle, conductive adhesive or an interference fit to electrically couple the cover 36. Once the arrow 22 of the insert 20 is located in the access cavity 58 and the coupling member 28 is electrically coupled to the conductive surface 52 of the connector 50, the flat surface 36 abuts against the insulating projection 62, in such a way that 00014. 0454 they also apply to the injection plug 120. However, the injection plug 120 includes many additional features and inherent functions, as mentioned below. The body of the injection plug 120 shown in Figures 4 and 5, as well as the insulating body 59 and the As illustrated in Figure 5, the injection portion 123 and the exposure portion 121 are generally perpendicular to each other, although other orientations are contemplated. The insertion portion 123 includes an arrow 122 sized to be received in paired form by the access cavity 58 of the electrical connector 50. In this way, the access cavity 58 of the electrical connector 50 can be dielectrically sealed by the arrow 122 of the insertion portion, when inserting the arrow into the access cavity, so that the outer surface of the arrow engages in a paired manner with the surface of the access cavity 58 in an interference fitting orifice. As is evident from Figures 4 and 5, the injection plug 120 includes a continuous internal channel 115. The body • of the injection pin 120, like the insert 20, includes an exposure portion 121 and an insertion portion. 123. The exposure portion 121 also includes a connecting or connecting portion 110. The exposure portion 121, the insertion portion 123 and the attachment portion 110 includes the continuous internal channel 115 through which a fluid can travel. The channel 115 is for removing fluids such as liquids and gases and other contaminants from "inside the high voltage electrical connector 50. 1 channel 115 is also for inserting fluids, such as insulating liquids into the electrical connector 5.0. In this way, the connecting portion 110 of the exposure portion 121 has a connecting opening or connection 112 to the channel 115 and the insertion portion 123 has an access opening 114 to the channel 115. The portion 121 of the injection pin 120 also includes a hole 126 formed in the head 124 of the insert body which functions as a 00014. 0454 exposure portion and still be within the confines of the present invention. The exposure portion 121 of the injection port 120 includes all portions of the insert body that are exposed when the insertion portion 123 is received in the access cavity 58. It also includes a portion of a coupling member 128 to ensure a good fit. dielectric connection between the conductive coating 236 and the external shield 55 of the projection 62. The exposure portion 121 is that portion of the insert body that is not the insertion portion 123, wherein the insertion portion includes that which forms a dielectric seal with access cavity 58 and 00014. 0454 surface that can develop on the outer surface of the insulating body of the injection plug 120, due to the capacitive coupling and any corona discharges are dissipated to earth. The conventional injection ports do not involve any coating or conductive shielding of any kind and, thus, do not prevent the occurrence of corona discharges. For example, when service personnel attempt to couple an injection line to a conventional injection port to remove contaminants from inside an electrical connector 00014. High voltage 0454 50T.i the outer surface of the conventional injection port may be a voltage high enough to cause a corona discharge. The injection pin 120 according to the present invention reduces the, opportunities or possibilities of such corona discharges, • because at least a portion of the outer surface of the exposure portion 121 is preferably covered with a conductive shield, which in the embodiment illustrated in Figure 5 is the overlay 120. For example, a conductive elastomeric cover or pre-molded cap can also form the conductive shield for the injection pin 120. The connecting or connecting portion 110 of the injection pin 120 is generally a cylindrical male member. or arrow 'having strings 111 for connecting a fluid transfer device, such as a line of 00014. 0454 minimum discharge in corona or other electric shocks. The stress cone 140 is generally located adjacent to the junction opening 112, because this is the area where corona discharges are very likely to occur, although the stress cone could be located elsewhere. along the exposure portion 121. The stress cone 110 includes a curved conical surface 144, defined by the diameter that gradually increases toward the junction opening or connection 112. This changing or variable diameter is located on an axis of a 00014. 0454 portion of the continuous internal channel 115 in the exposure portion 121. That is, if the connecting or connecting aperture 112 looks vertically upwards, the stress cone 140 has an inverted or "bell-like" shape. of stress Jj 140 also includes a cylindrical surface 142 adjacent the curved conical surface 142 and a flat circular surface 146 located opposite the curved conical surface 144 such that the interior of the stress cone is jn solid dielectric material. Effort 140 may not have a solid interior and still be within the confines of the present invention For example, the stress cone 140 may have a hollow interior similar to that of a bell. Figure 5, the stress cone 140 is made from an insulating material and includes the surface coating 136 preferably along the curved conical surface 144, but not the surface ie cylindrical 142 and, of the flat circular surface 146. i The cone of. effort is shaped and coated in this way to conform any electric field that can be formed nearby; of the connecting opening 112 so that ejj. electrical stress in the air in the region surrounding the junction opening or connection 112 is Effort 140 may be a separate piece connected to the arrow 109 of the exposure portion 121. The stress cone 110 may be connected to the arrow 109 by any suitable method known in the art, such as, welding, glue. , adhesive, chemical bond, an interference fit, rivets, screws and sandpaper. In the same way, the present invention also contemplates that the stress cone 1 (0) can be formed integral with the arrow 109, such that the entire body of the insert 120 i is in one piece. stress cone 140 is part of the exposure portion 121. However, if the stress cone 140 is formed separately, it is preferable that any conductive coating 136 in the stress cone 140 be electrically coupled with any conductive coating 136 in the arrow 109 of the exposure portion 121. Each of the above observations are the results of the present invention The above description of the preferred and alternative embodiments of the present invention should be considered only as illustrative of the principle of Of course, it can easily be understood that those skilled in the art could "make numerous modifications without Beware of the spirit of the invention as defined in the following claims. 00014. 0454

Claims (2)

1. the body portion at least at the second end of the projection.
2. 2. The high-voltage connector according to claim 1, e? > where the access cavity has a sufficient length to substantially prevent the access cavity and an exposure portion, the exposure portion includes an outer surface, a means for withdrawing the insert from the cavity, a conductive coating secured in a fixed manner to the exterior surface of the cavity. =. portion of exposure and a means for electrically coupling the conductive coating with the conductive external shielding. 4. An insert for insertion into an access cavity of a high voltage electrical connector, the insert comprises: a body made or manufactured from an insulating material, the body has an insertion portion and a portion of exposure, the insertion portion includes an arrow sized to be received in a paired manner by the access cavity of the electrical connector, the exposure portion includes: an outer surface; means for removing the insert from the cavity; a conductive coating adhered in a fixed manner to the exterior surface of the exposure portion; and 0 means for electrically coupling the conductive coating with a conductive surface of the electrical connector. - The insert according to claim 4, wherein the exposure portion of the body further comprises a where the connection means or connection is located between the connection or connection opening and the stress cone. 12. The insert according to claim 10, wherein the means of a connection or connections are cords in a male member extending from the exposure portion. The insert according to claim 5, further comprising a stress cone having a means for minimizing the! occurrence of electric shocks. The insert according to claim 13, wherein the means minimizing the corona effect includes a bell-shaped external surface of the stress cone. 00014. 0454 15. The insert according to claim 5, wherein the insertion portion includes an arrow in which the internal channel is located. 16. The seating according to claim 15, further comprising a: stress cone connected to the arrow, the stress cone has a conductive coating fixedly attached to the outer surface of the stress cone. 17. The insert according to claim 16, wherein the stress cone is made or manufactured from an insulating material. 18. The insert according to claim 4, wherein the electrical coupling means includes a lip or radial edge coated with the conductive coating. The insert according to claim 4, wherein the removal means is an orifice located through the exposure portion. 20. The injector according to claim 4, wherein the conductive coating is over the entire surface area of the outer surface of the exposure portion. The insert according to claim 4, wherein the conductive coating is a conductive paint sprayed on the outer surface of the exposure portion. 22. The insert according to claim 4, in combination with a removable high voltage electrical connector has an access cavity that receives the insert 23. The insert according to claim 4, wherein the conductive coating is adhered in a fixed manner to the insert. a portion of the outer surface of the II exposure portion 24. A high-voltage electrical connector comprising: 00014. 0454 26. A high-voltage plug-in according to claim 24, wherein the exposure portion further comprises a stress cone to prevent electric shock. 27. A dielectric injection plug comprising: a body made or manufactured from a material 00014. 0454 insulator, the body has an insertion portion and an exposure portion, the exposure portion has a connecting portion, the insertion portion includes an arrow, the exposure portion includes an exterior surface, a handle portion, a conductive shield covering the exterior surface of the exposure portion, and a barrier member. electrical coupling for electrically coupling the conductive coating with a conductive surface, the exposure portion, the insertion portion and the unconnection portion, include a continuous internal channel through which a fluid can travel, the junction portion or connection has a connection opening or connection to the channel and the insertion portion has an access opening to the channel. I 28. The dielectric injection plug according to claim 27, wherein the exposure portion further comprises a force cone to prevent electrical discharges. 29. The dielectric injection plug according to claim 27, further comprising a stress cone connected to the exposure portion. 30. The dielectric injection plug according to claim 28, wherein the stress cone includes an outer surface at least partially covered with a conductive coating. 31. The dielectric injection plug according to claim 27, wherein the exposure portion further comprises a bell-shaped stress cone. 32. The dielectric injection plug according to claim 27, wherein the conductive shield is a conductive coating adhered in a fixed manner to the exterior surface to the exposure portion, 00014. 0454 33. The dielectric injection plug according to claim 27, wherein the conductive shield is a molded conductive elastomer. 34. The dielectric injection plug according to claim 27, wherein the conductive shield covers all surfaces of the outer portion, which excludes the connecting or connecting portion. 35. One | high-voltage electrical connector unit, comprising: a high-voltage electrical connection having a body portion of electrically insulating material; an external conductive shield of the body portion surrounding at least partially the body portion; a projection of electrically insulating material that extends the body portion; an access cavity extending through the projection, the access cavity communicates the outside of the electrical connector with a conductive portion inside the electrical connector; an external projection conductor shield secured to the projection, the external projection conductor shield is permanently electrically coupled to the external shield conducting the body portion; an insert pin for insertion into the access cavity, the insert pin includes an external conductive shield of the insert pin and a means for electrically coupling the external conductive shield of the insert pin with the external conductive shield of the insert. projection; and an injection plug for insertion in the access cavity, the injection pin has through it an internal channel for injecting a fluid towards the connector, the injection pin includes a shield 00014. 0454 external conductor d 1e the injection plug and a means to electrically connect to the external conductive shield of the injection pin; with the external shielding conductor of the projection. 00014. 0454 -R, SUMMARY OF THE INVENTION A high-voltage electrical connector interconnects power sources *, such as transformers and short circuits, with distribution systems and the like, by means of a high-voltage cable. The high-voltage electrical connector includes an access cavity that provides access to the interior of the electrical connector. The access cavity can be adjusted with an insert pin or with an insert injection pin. The inserts include a conductive shield to reduce the possibility of electric shock from the "inserts 00014. 0454